Collection: Balls - Plastic - Polypropylene

Balls (With Images)

Plastic

Acetal
Acrylic
Nylon
Polypropylene
PTFE
PVC
Torlon

15 Products in this selection

Plastic ball grades are not the same as those for precision balls
Excellent for liquid level float applications .Very resistant to most acids and alkalies.
Polypropylene
Tolerance and sphericity: up to and including 25.4mm diameter = + / -0.0508mm, over 25.4mm diameter +/-0.0762mm.
Unpolished.
Specific Gravity: 0.91.

Small Parts & Bearings

Additional resources:
Balls Master Catalogue PDF
AFBMA and ISO Ball Grades

A more comprehensive listing may be found on the MBA Minibearings main store at Balls - Plastic - Polypropylene.

Diameter (D)	Material	Precision Grade	Hardness	Properties	Colour
Diameter (D) 3.18 mm +/- 0.051 _{(0.125 in.)}	Material Polypropylene	Precision Grade Grade 2	Hardness 86 Rockwell R	Properties Excellent for liquid level float applications.	Colour White
Material: Polypropylene Specific Gravity: 0.91
Part Number: BL-00318-PP (100 Pcs) Plastic Balls - 3.18 mm Polypropylene - Grade 2 13 units (1300 pcs) Available Now \| Item Discontinued - Up to 13 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $2.06 AUD Regular price ~~$9.60 AUD~~ Sale price $2.06 AUD Unit price per Per 100
Diameter (D)	Material	Precision Grade	Hardness	Indicative Image
Diameter (D) 3.18 mm +/- 0.051 _{(0.125 in.)}	Material Polypropylene	Precision Grade Grade 2	Hardness 86 Rockwell R
Material: Polypropylene Properties: Excellent for liquid level float applications. Colour: White Specific Gravity: 0.91
Part Number: BL-00318-PP (100 Pcs) Plastic Balls - 3.18 mm Polypropylene - Grade 2 13 units (1300 pcs) Available Now \| Item Discontinued - Up to 13 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $2.06 AUD Regular price ~~$9.60 AUD~~ Sale price $2.06 AUD Unit price per Per 100
BL-00318-PP (100 Pcs) --- Plastic Balls - 3.18 mm Polypropylene - Grade 2 Sale BL-00318-PP (100 Pcs) --- Plastic Balls - 3.18 mm Polypropylene - Grade 2 Regular price $2.06 AUD Regular price ~~$9.60 AUD~~ Sale price $2.06 AUD Unit price per 13 Available Now Sale
Diameter (D) 3.97 mm +/- 0.051 _{(0.156 in.)}	Material Polypropylene	Precision Grade Grade 2	Hardness 86 Rockwell R	Properties Excellent for liquid level float applications.	Colour White
Material: Polypropylene Specific Gravity: 0.91
Part Number: BL-00397-PP (5 Pcs) Plastic Balls - 3.97 mm Polypropylene - Grade 2 774 units (3870 pcs) Available Now \| Further orders can be expected around Fri, Sep 05, 2025 Regular price $0.68 AUD Regular price Sale price $0.68 AUD Unit price per Per 5
Diameter (D) 3.97 mm +/- 0.051 _{(0.156 in.)}	Material Polypropylene	Precision Grade Grade 2	Hardness 86 Rockwell R
Material: Polypropylene Properties: Excellent for liquid level float applications. Colour: White Specific Gravity: 0.91
Part Number: BL-00397-PP (5 Pcs) Plastic Balls - 3.97 mm Polypropylene - Grade 2 774 units (3870 pcs) Available Now \| Further orders can be expected around Fri, Sep 05, 2025 Regular price $0.68 AUD Regular price Sale price $0.68 AUD Unit price per Per 5 View the product page first if you are unsure.
BL-00397-PP (5 Pcs) --- Plastic Balls - 3.97 mm Polypropylene - Grade 2 BL-00397-PP (5 Pcs) --- Plastic Balls - 3.97 mm Polypropylene - Grade 2 Regular price $0.68 AUD Regular price Sale price $0.68 AUD Unit price per 774 Available Now
Diameter (D) 4.76 mm +/- 0.051 _{(0.187 in.)}	Material Polypropylene	Precision Grade Grade 2	Hardness 86 Rockwell R	Properties Excellent for liquid level float applications.	Colour White
Material: Polypropylene Specific Gravity: 0.91
Part Number: BL-00476-PP (20 Pcs) Plastic Balls - 4.76 mm Polypropylene - Grade 2 159 units (3180 pcs) Available Now \| Further orders can be expected around Fri, Sep 05, 2025 Regular price $2.77 AUD Regular price Sale price $2.77 AUD Unit price per Per 20
Diameter (D) 4.76 mm +/- 0.051 _{(0.187 in.)}	Material Polypropylene	Precision Grade Grade 2	Hardness 86 Rockwell R
Material: Polypropylene Properties: Excellent for liquid level float applications. Colour: White Specific Gravity: 0.91
Part Number: BL-00476-PP (20 Pcs) Plastic Balls - 4.76 mm Polypropylene - Grade 2 159 units (3180 pcs) Available Now \| Further orders can be expected around Fri, Sep 05, 2025 Regular price $2.77 AUD Regular price Sale price $2.77 AUD Unit price per Per 20 View the product page first if you are unsure.
BL-00476-PP (20 Pcs) --- Plastic Balls - 4.76 mm Polypropylene - Grade 2 BL-00476-PP (20 Pcs) --- Plastic Balls - 4.76 mm Polypropylene - Grade 2 Regular price $2.77 AUD Regular price Sale price $2.77 AUD Unit price per 159 Available Now
Diameter (D) 5.56 mm +/- 0.051 _{(0.219 in.)}	Material Polypropylene	Precision Grade Grade 2	Hardness 86 Rockwell R	Properties Excellent for liquid level float applications.	Colour White
Material: Polypropylene Specific Gravity: 0.91
Part Number: BL-00556-PP (20 Pcs) Plastic Balls - 5.56 mm Polypropylene - Grade 2 94 units (1880 pcs) Available Now \| Further orders can be expected around Fri, Sep 05, 2025 Regular price $4.14 AUD Regular price Sale price $4.14 AUD Unit price per Per 20
Diameter (D) 5.56 mm +/- 0.051 _{(0.219 in.)}	Material Polypropylene	Precision Grade Grade 2	Hardness 86 Rockwell R
Material: Polypropylene Properties: Excellent for liquid level float applications. Colour: White Specific Gravity: 0.91
Part Number: BL-00556-PP (20 Pcs) Plastic Balls - 5.56 mm Polypropylene - Grade 2 94 units (1880 pcs) Available Now \| Further orders can be expected around Fri, Sep 05, 2025 Regular price $4.14 AUD Regular price Sale price $4.14 AUD Unit price per Per 20 View the product page first if you are unsure.
BL-00556-PP (20 Pcs) --- Plastic Balls - 5.56 mm Polypropylene - Grade 2 BL-00556-PP (20 Pcs) --- Plastic Balls - 5.56 mm Polypropylene - Grade 2 Regular price $4.14 AUD Regular price Sale price $4.14 AUD Unit price per 94 Available Now
Diameter (D) 6.35 mm +/- 0.051 _{(0.25 in.)}	Material Polypropylene	Precision Grade Grade 2	Hardness 86 Rockwell R	Properties Excellent for liquid level float applications.	Colour White
Material: Polypropylene Specific Gravity: 0.91
Part Number: BL-00635-PP (3000 Pcs) Plastic Balls - 6.35 mm Polypropylene - Grade 2 Out of Stock \| Backorder Now \| Orders can be expected around Fri, Sep 05, 2025 Regular price $346.95 AUD Regular price ~~$816.00 AUD~~ Sale price $346.95 AUD Unit price per Per 3000
Diameter (D) 6.35 mm +/- 0.051 _{(0.25 in.)}	Material Polypropylene	Precision Grade Grade 2	Hardness 86 Rockwell R
Material: Polypropylene Properties: Excellent for liquid level float applications. Colour: White Specific Gravity: 0.91
Part Number: BL-00635-PP (3000 Pcs) Plastic Balls - 6.35 mm Polypropylene - Grade 2 Out of Stock \| Backorder Now \| Orders can be expected around Fri, Sep 05, 2025 Regular price $346.95 AUD Regular price ~~$816.00 AUD~~ Sale price $346.95 AUD Unit price per Per 3000 View the product page first if you are unsure.
BL-00635-PP (3000 Pcs) --- Plastic Balls - 6.35 mm Polypropylene - Grade 2 Sale BL-00635-PP (3000 Pcs) --- Plastic Balls - 6.35 mm Polypropylene - Grade 2 Regular price $346.95 AUD Regular price ~~$816.00 AUD~~ Sale price $346.95 AUD Unit price per Out of stock! Backorder Now Sale
Diameter (D) 7.94 mm +/- 0.051 _{(0.313 in.)}	Material Polypropylene	Precision Grade Grade 2	Hardness 86 Rockwell R	Properties Excellent for liquid level float applications.	Colour White
Material: Polypropylene Specific Gravity: 0.91
Part Number: BL-00794-PP (2000 Pcs) Plastic Balls - 7.94 mm Polypropylene - Grade 2 Out of Stock \| Backorder Now \| Orders can be expected around Fri, Sep 05, 2025 Regular price $340.14 AUD Regular price ~~$800.00 AUD~~ Sale price $340.14 AUD Unit price per Per 2000
Diameter (D) 7.94 mm +/- 0.051 _{(0.313 in.)}	Material Polypropylene	Precision Grade Grade 2	Hardness 86 Rockwell R
Material: Polypropylene Properties: Excellent for liquid level float applications. Colour: White Specific Gravity: 0.91
Part Number: BL-00794-PP (2000 Pcs) Plastic Balls - 7.94 mm Polypropylene - Grade 2 Out of Stock \| Backorder Now \| Orders can be expected around Fri, Sep 05, 2025 Regular price $340.14 AUD Regular price ~~$800.00 AUD~~ Sale price $340.14 AUD Unit price per Per 2000 View the product page first if you are unsure.
BL-00794-PP (2000 Pcs) --- Plastic Balls - 7.94 mm Polypropylene - Grade 2 Sale BL-00794-PP (2000 Pcs) --- Plastic Balls - 7.94 mm Polypropylene - Grade 2 Regular price $340.14 AUD Regular price ~~$800.00 AUD~~ Sale price $340.14 AUD Unit price per Out of stock! Backorder Now Sale
Diameter (D) 9.53 mm +/- 0.051 _{(0.375 in.)}	Material Polypropylene	Precision Grade Grade 2	Hardness 86 Rockwell R	Properties Excellent for liquid level float applications.	Colour White
Material: Polypropylene Specific Gravity: 0.91
Part Number: BL-00953-PP (10 Pcs) Plastic Balls - 9.53 mm Polypropylene - Grade 2 155 units (1550 pcs) Available Now \| Further orders can be expected around Fri, Sep 05, 2025 Regular price $4.95 AUD Regular price Sale price $4.95 AUD Unit price per Per 10
Diameter (D) 9.53 mm +/- 0.051 _{(0.375 in.)}	Material Polypropylene	Precision Grade Grade 2	Hardness 86 Rockwell R
Material: Polypropylene Properties: Excellent for liquid level float applications. Colour: White Specific Gravity: 0.91
Part Number: BL-00953-PP (10 Pcs) Plastic Balls - 9.53 mm Polypropylene - Grade 2 155 units (1550 pcs) Available Now \| Further orders can be expected around Fri, Sep 05, 2025 Regular price $4.95 AUD Regular price Sale price $4.95 AUD Unit price per Per 10 View the product page first if you are unsure.
BL-00953-PP (10 Pcs) --- Plastic Balls - 9.53 mm Polypropylene - Grade 2 BL-00953-PP (10 Pcs) --- Plastic Balls - 9.53 mm Polypropylene - Grade 2 Regular price $4.95 AUD Regular price Sale price $4.95 AUD Unit price per 155 Available Now
Diameter (D) 12.70 mm +/- 0.051 _{(0.5 in.)}	Material Polypropylene	Precision Grade Grade 2	Hardness 86 Rockwell R	Properties Excellent for liquid level float applications.	Colour White
Material: Polypropylene Specific Gravity: 0.91
Part Number: BL-01270-PP (5 Pcs) Plastic Balls - 12.7 mm Polypropylene - Grade 2 63 units (315 pcs) Available Now \| Further orders can be expected around Fri, Sep 05, 2025 Regular price $5.95 AUD Regular price Sale price $5.95 AUD Unit price per Per 5
Diameter (D) 12.70 mm +/- 0.051 _{(0.5 in.)}	Material Polypropylene	Precision Grade Grade 2	Hardness 86 Rockwell R
Material: Polypropylene Properties: Excellent for liquid level float applications. Colour: White Specific Gravity: 0.91
Part Number: BL-01270-PP (5 Pcs) Plastic Balls - 12.7 mm Polypropylene - Grade 2 63 units (315 pcs) Available Now \| Further orders can be expected around Fri, Sep 05, 2025 Regular price $5.95 AUD Regular price Sale price $5.95 AUD Unit price per Per 5 View the product page first if you are unsure.
BL-01270-PP (5 Pcs) --- Plastic Balls - 12.7 mm Polypropylene - Grade 2 BL-01270-PP (5 Pcs) --- Plastic Balls - 12.7 mm Polypropylene - Grade 2 Regular price $5.95 AUD Regular price Sale price $5.95 AUD Unit price per 63 Available Now
Diameter (D) 15.88 mm +/- 0.051 _{(0.625 in.)}	Material Polypropylene	Precision Grade Grade 2	Hardness 86 Rockwell R	Properties Excellent for liquid level float applications.	Colour White
Material: Polypropylene Specific Gravity: 0.91
Part Number: BL-01588-PP (5 Pcs) Plastic Balls - 15.88 mm Polypropylene - Grade 2 13 units (65 pcs) Available Now \| Further orders can be expected around Fri, Sep 05, 2025 Regular price $10.05 AUD Regular price Sale price $10.05 AUD Unit price per Per 5
Diameter (D) 15.88 mm +/- 0.051 _{(0.625 in.)}	Material Polypropylene	Precision Grade Grade 2	Hardness 86 Rockwell R
Material: Polypropylene Properties: Excellent for liquid level float applications. Colour: White Specific Gravity: 0.91
Part Number: BL-01588-PP (5 Pcs) Plastic Balls - 15.88 mm Polypropylene - Grade 2 13 units (65 pcs) Available Now \| Further orders can be expected around Fri, Sep 05, 2025 Regular price $10.05 AUD Regular price Sale price $10.05 AUD Unit price per Per 5 View the product page first if you are unsure.
BL-01588-PP (5 Pcs) --- Plastic Balls - 15.88 mm Polypropylene - Grade 2 BL-01588-PP (5 Pcs) --- Plastic Balls - 15.88 mm Polypropylene - Grade 2 Regular price $10.05 AUD Regular price Sale price $10.05 AUD Unit price per 13 Available Now
Diameter (D) 17.46 mm +/- 0.051 _{(0.687 in.)}	Material Polypropylene	Precision Grade Grade 2	Hardness 86 Rockwell R	Properties Excellent for liquid level float applications.	Colour White
Material: Polypropylene Specific Gravity: 0.91
Part Number: BL-01746-PP (350 Pcs) Plastic Balls - 17.46 mm Polypropylene - Grade 2 Out of Stock \| Backorder Now \| Orders can be expected around Fri, Sep 05, 2025 Regular price $389.32 AUD Regular price ~~$915.60 AUD~~ Sale price $389.32 AUD Unit price per Per 350
Diameter (D) 17.46 mm +/- 0.051 _{(0.687 in.)}	Material Polypropylene	Precision Grade Grade 2	Hardness 86 Rockwell R
Material: Polypropylene Properties: Excellent for liquid level float applications. Colour: White Specific Gravity: 0.91
Part Number: BL-01746-PP (350 Pcs) Plastic Balls - 17.46 mm Polypropylene - Grade 2 Out of Stock \| Backorder Now \| Orders can be expected around Fri, Sep 05, 2025 Regular price $389.32 AUD Regular price ~~$915.60 AUD~~ Sale price $389.32 AUD Unit price per Per 350 View the product page first if you are unsure.
BL-01746-PP (350 Pcs) --- Plastic Balls - 17.46 mm Polypropylene - Grade 2 Sale BL-01746-PP (350 Pcs) --- Plastic Balls - 17.46 mm Polypropylene - Grade 2 Regular price $389.32 AUD Regular price ~~$915.60 AUD~~ Sale price $389.32 AUD Unit price per Out of stock! Backorder Now Sale
Diameter (D) 19.05 mm +/- 0.051 _{(0.75 in.)}	Material Polypropylene	Precision Grade Grade 2	Hardness 86 Rockwell R	Properties Excellent for liquid level float applications.	Colour White
Material: Polypropylene Specific Gravity: 0.91
Part Number: BL-01905-PP Plastic Balls - 19.05 mm Polypropylene - Grade 2 43 Available Now \| Further orders can be expected around Fri, Sep 05, 2025 Regular price $3.50 AUD Regular price Sale price $3.50 AUD Unit price per Each
Diameter (D) 19.05 mm +/- 0.051 _{(0.75 in.)}	Material Polypropylene	Precision Grade Grade 2	Hardness 86 Rockwell R
Material: Polypropylene Properties: Excellent for liquid level float applications. Colour: White Specific Gravity: 0.91
Part Number: BL-01905-PP Plastic Balls - 19.05 mm Polypropylene - Grade 2 43 Available Now \| Further orders can be expected around Fri, Sep 05, 2025 Regular price $3.50 AUD Regular price Sale price $3.50 AUD Unit price per Each View the product page first if you are unsure.
BL-01905-PP --- Plastic Balls - 19.05 mm Polypropylene - Grade 2 BL-01905-PP --- Plastic Balls - 19.05 mm Polypropylene - Grade 2 Regular price $3.50 AUD Regular price Sale price $3.50 AUD Unit price per 43 Available Now
Diameter (D) 25.40 mm +/- 0.051 _{(1 in.)}	Material Polypropylene	Precision Grade Grade 2	Hardness 86 Rockwell R	Properties Excellent for liquid level float applications.	Colour White
Material: Polypropylene Specific Gravity: 0.91
Part Number: BL-02540-PP (150 Pcs) Plastic Balls - 25.4 mm Polypropylene - Grade 2 Out of Stock \| Backorder Now \| Orders can be expected around Fri, Sep 05, 2025 Regular price $412.95 AUD Regular price ~~$970.80 AUD~~ Sale price $412.95 AUD Unit price per Per 150
Diameter (D) 25.40 mm +/- 0.051 _{(1 in.)}	Material Polypropylene	Precision Grade Grade 2	Hardness 86 Rockwell R
Material: Polypropylene Properties: Excellent for liquid level float applications. Colour: White Specific Gravity: 0.91
Part Number: BL-02540-PP (150 Pcs) Plastic Balls - 25.4 mm Polypropylene - Grade 2 Out of Stock \| Backorder Now \| Orders can be expected around Fri, Sep 05, 2025 Regular price $412.95 AUD Regular price ~~$970.80 AUD~~ Sale price $412.95 AUD Unit price per Per 150 View the product page first if you are unsure.
BL-02540-PP (150 Pcs) --- Plastic Balls - 25.4 mm Polypropylene - Grade 2 Sale BL-02540-PP (150 Pcs) --- Plastic Balls - 25.4 mm Polypropylene - Grade 2 Regular price $412.95 AUD Regular price ~~$970.80 AUD~~ Sale price $412.95 AUD Unit price per Out of stock! Backorder Now Sale
Diameter (D) 31.75 mm +/- 0.127 _{(1.25 in.)}	Material Polypropylene	Precision Grade Grade 3	Hardness 86 Rockwell R	Properties Excellent for liquid level float applications.	Colour White
Material: Polypropylene Specific Gravity: 0.91
Part Number: BL-03175-PP (100 Pcs) Plastic Balls - 31.75 mm Polypropylene - Grade 3 Out of Stock \| Backorder Now \| Orders can be expected around Fri, Sep 05, 2025 Regular price $427.86 AUD Regular price ~~$1,005.60 AUD~~ Sale price $427.86 AUD Unit price per Per 100
Diameter (D) 31.75 mm +/- 0.127 _{(1.25 in.)}	Material Polypropylene	Precision Grade Grade 3	Hardness 86 Rockwell R
Material: Polypropylene Properties: Excellent for liquid level float applications. Colour: White Specific Gravity: 0.91
Part Number: BL-03175-PP (100 Pcs) Plastic Balls - 31.75 mm Polypropylene - Grade 3 Out of Stock \| Backorder Now \| Orders can be expected around Fri, Sep 05, 2025 Regular price $427.86 AUD Regular price ~~$1,005.60 AUD~~ Sale price $427.86 AUD Unit price per Per 100 View the product page first if you are unsure.
BL-03175-PP (100 Pcs) --- Plastic Balls - 31.75 mm Polypropylene - Grade 3 Sale BL-03175-PP (100 Pcs) --- Plastic Balls - 31.75 mm Polypropylene - Grade 3 Regular price $427.86 AUD Regular price ~~$1,005.60 AUD~~ Sale price $427.86 AUD Unit price per Out of stock! Backorder Now Sale
Diameter (D) 44.45 mm +/- 0.051 _{(1.75 in.)}	Material Polypropylene	Precision Grade Grade 3	Hardness 86 Rockwell R	Properties Excellent for liquid level float applications.	Colour White
Material: Polypropylene Specific Gravity: 0.91
Part Number: BL-04445-PP Plastic Balls - 44.45 mm Polypropylene - Grade 3 3 Available Now \| Further orders can be expected around Fri, Sep 05, 2025 Regular price $28.14 AUD Regular price Sale price $28.14 AUD Unit price per Each
Diameter (D) 44.45 mm +/- 0.051 _{(1.75 in.)}	Material Polypropylene	Precision Grade Grade 3	Hardness 86 Rockwell R
Material: Polypropylene Properties: Excellent for liquid level float applications. Colour: White Specific Gravity: 0.91
Part Number: BL-04445-PP Plastic Balls - 44.45 mm Polypropylene - Grade 3 3 Available Now \| Further orders can be expected around Fri, Sep 05, 2025 Regular price $28.14 AUD Regular price Sale price $28.14 AUD Unit price per Each View the product page first if you are unsure.
BL-04445-PP --- Plastic Balls - 44.45 mm Polypropylene - Grade 3 BL-04445-PP --- Plastic Balls - 44.45 mm Polypropylene - Grade 3 Regular price $28.14 AUD Regular price Sale price $28.14 AUD Unit price per 3 Available Now
Diameter (D) 101.60 mm +/- 0.000762 _{(4 in.)}	Material Polypropylene	Precision Grade Grade 3	Hardness 86 Rockwell R	Properties Excellent for liquid level float applications.	Colour White
Material: Polypropylene Specific Gravity: 0.91
Part Number: BL-10160-PP Plastic Balls - 101.6 mm Polypropylene - Grade 3 4 Available Now \| Item Discontinued - Up to 4 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $90.23 AUD Regular price ~~$327.26 AUD~~ Sale price $90.23 AUD Unit price per Each
Diameter (D) 101.60 mm +/- 0.000762 _{(4 in.)}	Material Polypropylene	Precision Grade Grade 3	Hardness 86 Rockwell R
Material: Polypropylene Properties: Excellent for liquid level float applications. Colour: White Specific Gravity: 0.91
Part Number: BL-10160-PP Plastic Balls - 101.6 mm Polypropylene - Grade 3 4 Available Now \| Item Discontinued - Up to 4 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $90.23 AUD Regular price ~~$327.26 AUD~~ Sale price $90.23 AUD Unit price per Each
BL-10160-PP --- Plastic Balls - 101.6 mm Polypropylene - Grade 3 Sale BL-10160-PP --- Plastic Balls - 101.6 mm Polypropylene - Grade 3 Regular price $90.23 AUD Regular price ~~$327.26 AUD~~ Sale price $90.23 AUD Unit price per 4 Available Now Sale